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Method
Rel. frost
Last spring frost (0°C) 24 May Frost 3 of 4 years · 20 years of data
Frost-free season 99 days 24 May – 31 Aug
Probability that frost is over

25% = Half of years are frost-free by this date. More about frost & season →

Custom date
Note: This location has a shorter growing season. Plants marked with Fleece, Greenhouse or Season too short need extra protection or are difficult to grow here.

Vegetables

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
5 – 19 Apr
13 Jun
5-7 wk
24 May
18 Jul
0 wk
25 May
8 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
12 – 26 Apr
25 Jun
4-6 wk
24 May
23 Jul
0 wk
25 May
13 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
7 Mar – 4 Apr
27 Mar
8-12 wk
30 May
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
5 – 19 Apr
8 Jun
5-7 wk
24 May
13 Jul
0 wk
24 May
3 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
9 – 16 May
21 May
3-4 wk
6 Jun
11 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
2 – 9 May
24 May
4-5 wk
6 Jun
21 Jun
2 wk after
18 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
4 – 11 Jun
3-4 wk
2 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
1 – 29 Mar
19 Mar
8-12 wk
24 May
0 wk
6 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
25 May
3 Jun
0 wk
25 May
0 wk
Maize
Zea mays
Fleece
2 – 9 May
11 May
3-4 wk
30 May
1 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
28 Apr – 5 May
20 Jun
3-4 wk
26 May
11 Jul
0 wk
6 Jun
1 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
24 May
1 Jul
0 wk
24 May
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
5 – 19 Apr
8 Jun
5-7 wk
24 May
13 Jul
0 wk
24 May
3 Jul
0 wk
Potato
Solanum tuberosum
22 Apr – 6 May
17 May
4-6 wk
3 Jun
14 Jun
1 wk after
3 Jun
4 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 Apr
16 Jun
5-7 wk
24 May
21 Jul
0 wk
25 May
11 Jul
0 wk
Pumpkin
Cucurbita pepo
28 May – 4 Jun
3-4 wk
25 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
28 Apr – 5 May
24 May
3-4 wk
26 May
14 Jun
0 wk
6 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
12 – 26 Apr
20 Jun
4-6 wk
24 May
18 Jul
0 wk
Lettuce
Lactuca sativa
26 Apr – 3 May
5 Jul
3-4 wk
24 May
26 Jul
0 wk
25 May
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
12 – 26 Apr
20 Jun
4-6 wk
24 May
18 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
26 Apr – 10 May
27 May
2-4 wk
24 May
10 Jun
0 wk
24 May
31 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
25 May
3 Jun
0 wk
25 May
0 wk
Spinach
Spinacia oleracea
26 Apr – 3 May
22 Jul
3-4 wk
24 May
12 Aug
0 wk
21 May
2 Aug
0 wk
Sweet potato
Ipomoea batatas
18 Jun – 2 Jul
4-6 wk
30 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
4 – 18 Apr
20 Apr
6-8 wk
30 May
1 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
9 – 23 May
28 May
2-4 wk
6 Jun
11 Jun
2 wk after
6 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
12 – 26 Apr
20 Jun
4-6 wk
24 May
18 Jul
0 wk
Garden pea
Pisum sativum
26 Apr – 3 May
20 Jun
3-4 wk
24 May
11 Jul
0 wk
25 May
1 Jul
0 wk

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Fleece
25 Apr – 9 May
17 May
4-6 wk
6 Jun
14 Jun
2 wk after
Lemon balm
Melissa officinalis
15 – 29 Mar
16 May
8-10 wk
24 May
11 Jul
0 wk
18 Jun
1 Jul
4 wk after
Dill
Anethum graveolens
25 May
11 Jul
0 wk
Wild chives
Allium schoenoprasum
29 Mar – 12 Apr
1 Jun
6-8 wk
24 May
13 Jul
0 wk
25 May
3 Jul
0 wk
Spearmint
Mentha spicata
1 – 29 Mar
18 May
8-12 wk
24 May
13 Jul
0 wk
18 Jun
3 Jul
4 wk after
Coriander
Coriandrum sativum
24 May
31 Jul
0 wk
6 Jun
21 Jul
2 wk after
Garden sage
Salvia officinalis
17 – 31 Mar
3 May
8-10 wk
26 May
28 Jun
0 wk
Common thyme
Thymus vulgaris
15 – 29 Mar
8 May
8-10 wk
24 May
3 Jul
0 wk
Oregano
Origanum vulgare
29 Mar – 12 Apr
22 May
6-8 wk
24 May
3 Jul
0 wk
18 Jun
23 Jun
4 wk after
Parsley
Petroselinum crispum
29 Mar – 12 Apr
22 May
6-8 wk
24 May
3 Jul
0 wk
25 May
23 Jun
0 wk
Rosemary
Salvia rosmarinus
17 Feb – 17 Mar
13 Mar
10-14 wk
26 May
0 wk

Annual flowers

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Morning glory
Ipomoea tricolor
Fleece
9 – 16 May
24 May
3-4 wk
6 Jun
14 Jun
2 wk after
Cornflower
Centaurea cyanus
24 May
13 Jul
0 wk
25 May
3 Jul
0 wk
Statice
Limonium sinuatum
28 Mar – 11 Apr
17 Apr
8-10 wk
6 Jun
12 Jun
2 wk after
Sweet William
Dianthus barbatus
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
3 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
11 – 25 Apr
1 May
6-8 wk
6 Jun
12 Jun
2 wk after
30 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
9 – 23 Apr
8 May
6-8 wk
4 Jun
19 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
23 Apr – 21 May
22 May
4-8 wk
18 Jun
19 Jun
4 wk after
18 Jun
4 wk after
Foxglove
Digitalis purpurea
15 – 29 Mar
8-10 wk
24 May
0 wk
6 Jun
2 wk after
Busy lizzie
Impatiens walleriana
2 – 30 Apr
4 Jun
8-12 wk
25 Jun
30 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
11 – 25 Apr
11 May
6-8 wk
6 Jun
22 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
25 Apr – 9 May
4-6 wk
6 Jun
2 wk after
Chinese lantern
Physalis alkekengi
17 – 31 Mar
6 Apr
8-10 wk
26 May
1 Jun
0 wk
Love in a mist
Nigella damascena
24 May
26 Jun
0 wk
25 May
16 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
4 – 18 Apr
2 May
6-8 wk
30 May
13 Jun
1 wk after
13 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
3 – 31 Mar
6 Apr
8-12 wk
26 May
1 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
1 – 29 Mar
19 Mar
8-12 wk
24 May
0 wk
Regal-foxtail
Ptilotus nobilis
Fleece
14 Mar – 11 Apr
9 Apr
8-12 wk
6 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
11 – 25 Apr
23 Apr
6-8 wk
6 Jun
2 wk after
Corn poppy
Papaver rhoeas
24 May
11 Jul
0 wk
25 May
1 Jul
0 wk
Snapdragon
Antirrhinum majus
1 – 29 Mar
6 May
8-12 wk
24 May
1 Jul
0 wk
3 Jun
21 Jun
1 wk after
Flossflower
Ageratum houstonianum
16 – 30 Apr
27 Apr
8-10 wk
25 Jun
5 wk after
Sweet pea
Lathyrus odoratus
29 Mar – 19 Apr
29 May
5-8 wk
24 May
3 Jul
0 wk
Stock
Matthiola incana
29 Mar – 12 Apr
30 May
6-8 wk
24 May
11 Jul
0 wk
6 Jun
1 Jul
2 wk after
Wormwood
Artemisia absinthium
29 Mar – 12 Apr
2 May
6-8 wk
24 May
13 Jun
0 wk
6 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
18 Apr – 2 May
17 May
4-6 wk
30 May
14 Jun
1 wk after
Garden pansy
Viola × wittrockiana
15 – 29 Mar
18 May
8-10 wk
24 May
13 Jul
0 wk
3 Jun
3 Jul
1 wk after
Petunia
Petunia
14 Mar – 11 Apr
17 Apr
8-12 wk
6 Jun
12 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
31 Mar – 14 Apr
20 Apr
6-8 wk
26 May
1 Jun
0 wk
6 Jul
6 wk after
Common zinnia
Zinnia elegans
25 Apr – 9 May
17 May
4-6 wk
6 Jun
14 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
2 – 16 May
24 May
3-5 wk
6 Jun
14 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
25 Apr – 9 May
22 May
4-6 wk
6 Jun
19 Jun
2 wk after
6 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
2 – 30 Apr
9 May
8-12 wk
25 Jun
4 Jul
5 wk after
Bee balm
Monarda didyma
1 – 29 Mar
16 Apr
8-12 wk
24 May
11 Jun
0 wk
18 Jun
4 wk after
Yarrow
Achillea millefolium
29 Mar – 12 Apr
2 Apr
6-8 wk
24 May
0 wk
6 Jun
2 wk after
Safflower
Carthamus tinctorius
24 May
13 Jun
0 wk
25 May
3 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
29 Mar – 12 Apr
22 May
6-8 wk
24 May
3 Jul
0 wk
8 May
23 Jun
2 wk before
Bishop's flower
Ammi majus
12 – 26 Apr
3 Jun
4-6 wk
24 May
1 Jul
0 wk
6 Jun
21 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
7 – 21 Mar
29 Mar
10-12 wk
30 May
7 Jun
1 wk after
Sunflower
Helianthus annuus
9 – 16 May
21 May
3-4 wk
6 Jun
11 Jun
2 wk after
18 Jun
4 wk after
China aster
Callistephus chinensis
11 – 25 Apr
10 May
6-8 wk
6 Jun
21 Jun
2 wk after
6 Jul
6 wk after
Annual phlox
Phlox drummondii
4 – 18 Apr
11 May
6-8 wk
30 May
22 Jun
1 wk after
6 Jul
6 wk after
Hollyhock
Alcea rosea
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
6 Jun
2 wk after
Alpine delphinium
Delphinium elatum
1 – 29 Mar
16 Apr
8-12 wk
24 May
11 Jun
0 wk
18 Jun
4 wk after
African marigold
Tagetes erecta
11 – 25 Apr
11 May
6-8 wk
6 Jun
22 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
31 Mar – 14 Apr
30 Apr
6-8 wk
26 May
11 Jun
0 wk
6 Jul
6 wk after
Wood sage
Salvia nemorosa
15 – 29 Mar
6 Apr
8-10 wk
24 May
1 Jun
0 wk
18 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
28 Mar – 25 Apr
3 May
6-10 wk
6 Jun
14 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
24 May
3 Jul
0 wk
25 May
23 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
21 Mar – 4 Apr
26 Apr
8-10 wk
30 May
21 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
29 Mar – 12 Apr
2 May
6-8 wk
24 May
13 Jun
0 wk
6 Jun
2 wk after